Ventilator



(No Model.) I Y A. DAUB.

VENTILATOR. No. 332,059. Patented Dec. 8, 1885..

UNITED STATES PATENT OFFICE.

ADOLPH DAUB, OF MILWAUKEE, WISCONSIN.

VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 332,059, dated December8, 1885.

Application filed May 22, 1885. Serial No. 166,337. (No model.)

' To all whom it mriy concern.-

Be it known that I, AnoLPH DAUB, of Milwaukee, in the county ofMilwaukee and State of \Visconsin, have invented new and usefulImprovements in Automatic Ventilators; and I do hereby declare thefollowing to be a full, clear, and exact description of said invention,reference being had to the accompanying drawings, and to the letters orfigures of reference marked thereon, which form a part of thisspecification.

My invention, to be hereinafter distinctly claimed, relates to anautomatic ventilator for chimneys or rooms so situated that operativemechanism is needed to superinduce a current of air for the purpose ofventilation.

In the accompanying drawings, Figure l is a section of a chimney havingmy device at tached, a part of the device being also in section. Fig. 2is a detail showing a part of the device and a method of supporting itin a room.

The same letters refer to like parts in both vlews.

The funnel a, open at its larger end toward the wind, is located abovethe top of the chimney or other locality to be ventilated, and a tube,1), forming the continuation of the funnel a, extends rearward a shortdistance, and is then bent down at right angles, so as to extenddownwardly into the chimney or room to be ventilated. Rigidly attachedto the horizontal part of this tube, and extending rearwardly therefrom,is a vane, 0, adapted to hold the mouth of the funnel to the wind. Thefunnel, tube, and vane are supported upon and rotate freely horizontallyin the bracket d, rigid to the chimney e. A collar, f, is affixed to thetube 1) above the bracket d,where by the tube is supported on thebracket, as described.

At the lower end of the tube 12, and within the chimney or room to beventilated, is the upturned terminal cap 9, the sides of which receiveand inclose the end of the tube b, and permit of a free but air-tightrotary motion therein. This cap 9 is supported and rotates freely on itsdownwardly-extending apex on the bracket h, which bracket is rigidlyattached to the chimney e. To insure a free rotary motion of this cap gon the bracket h, the apex of the cap is provided with a glass point, i,and a corresponding glass socket, j, is inserted in the bracket h, forthe reception of the point i. This cap 9 is also provided with two ormore laterally-extending tubular arms, kit, which arms are closed attheir outer ends, but are provided with a series of apertures, Z Z Z,along the respective sides,for the discharge of air therethrough.

Rigid to the cap is the centrally-located upwardly-extending stem m,passing up within and out through the side of the tube 1) at its anglethrough an aperture made therefor, and carrying rigid on its upper endtwo or more wind catching cups, n n. These cupsn n are affixed tohorizontal arms rigid to said stem m, and are so placed that, as theyrevolve with and about the stern m, they will each in succession be opento take the wind on the same side at the same point of their revolution,and will also expose their rounded exterior to the wind in the oppositepart of their circuit. These cups n n are intended as and for the fansof awind'enginato catch the force of the wind and compel the rotation ofthe stem at and g, and the ordinary oblique fans of a Windmill placedhorizontally may be used instead of these cups, if desired.

In Fig. 2 the cap 9 is shown as supported within a room by and upon abent bracket, h, affixed to the ceiling of the room.

When my device is used for ventilating a tall chimney, it is desirableto have the cap 9 and parts thereto attached as low in the chimney aspossible, to secure a current or agitation of the air as near the bottomas may be.

What I claim as new, and desire to secure by Letters Patent, is

l. The automatic ventilator, consisting of the funnel a, the bent tube1), continuingirearwardly and downwardly from the funnel, and the vanec, rigid to the tube 1), in combination with the upturned cap g,provided with the perforated tubular arms k, the upwardlyextendingcentrally-located stem m, rigid to cap 9, and the cup-fans n a, rigid tostem m, substantially as set forth.

2. In automatic ventilators, the funnel a,

tube 7), and vane a, rigid to each other and In testimonywhereof Iaffixmy signature in supported on bracket d, in combination with presence oftwo witnesses. theupturned cap 9, adapted to receive and rotate aroundthe end of the tube 1), the tubu- ADOLPH DAUB' 5 lar perforated arms 70k, and a supporting- Witnesses:

bracket for cap g, substantially as and for the O. T. BENEDICT,

purpose set forth. M. J. SOHINNER.

